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Ask the doctor: Seborrheic keratoses

Published: May, 2011

Q. I have a bad case of seborrheic keratoses on my back and chest. What can you tell me about this skin problem?

A. These growths on the skin can be unsightly and get irritated and bleed, but seborrheic keratoses (pronounced seb-o-REE-ik ker-ah-TOE-sees) are very common and noncancerous. Typically, they start as small yellow or tan bumps and then gradually turn dark brown or black and develop a wartlike surface. They appear most often on the face, shoulders, chest, and back. Seborrheic keratoses are usually a little bit raised, so they look like they've been stuck on the surface of the skin. Some Africans, African Americans, and other dark-skinned individuals get a variant of the condition called dermatosis papulosa nigra, which consists of many black lesions on the cheeks.

Daily Health Tip

Keep a food diary to track allergies or intolerances

Keeping a food diary can help you identify foods that don't agree with you. Every day, list the foods you eat and any symptoms that occur. Once you pinpoint a food that seems to trigger your symptoms, cut it out of your diet for a couple weeks and see what happens. Then add it back in. If the symptoms went away with its subtraction but return with its addition, you've found your culprit.